David,
I printed out the response header, by use of
xmlHttp.getAllResponseHeaders(), which could get the whole headers of
the response. So through it, I could know that the headers have been
added successfully to the responses.
For mod_cache, I just use mod_disk_cache instead of mod_mem_cache. Then
if the responses are cached, there would be header files and data files
stored in the responding directory. Right? So I use this way to check if
the responses are cached.
Erica
David Wortham wrote:
Erica,
I would follow Joachim's recommendation to:
You may want to use Firefox with the LiveHttpHeaders Plugin to look at
the headers, that are actually exchanged (or are you already doing
that).
My coworker informs me that PHP automatically updates the "last updated"
header line (to the current time). IIRC, you need to set the headers
first
thing in your PHP script otherwise PHP will set headers first. If PHP
sends
the header line first, you may be sending two conflicting lines (and
mod_cache will likely only read/process one of them). If anything is
echoed
before a header statement, you will probably not see that particular
header
line in the output. LiveHTTPHeaders will allow you to verify the
"Last-Updated" header line (and any other necessary header lines).
Also, how do you know that the response XML is not being served by
mod_cache? Are you looking at logfiles, header data, or something else?
This is important in us being able to help you resolve this issue.
One sure-fire way to know if it is a configuration/directory issue is
to set
the following directive:
CacheIgnoreCacheControl On
This directive should absolutely force every file in that
Directory/File/Location tag in your httpd.conf to force caching (no
matter
what the headers read). If you can't get that to work, I would look into
your mod_cache config. Also, don't forget to restart your httpd process
after any changes to httpd (probably not necessary for changes to
.htaccess
files).
Regards,
Dave
On 3/6/07, Erica Zhang <[EMAIL PROTECTED]> wrote:
Well, even I use the blinding-cache. It still could not work. Thanks,
